Bicycle-lock.



H. E. FOURCHER.

BICYCLE LOCK. APPLICATION FILED JUNE 3. IQIS.

Patented Nov. 14, 1916.

Inventor Attorneys HARRY E. FOURCHER, OF AUGUSTA, GEORGIA.

BICYCLE-LOCK.

To all cohom it may concern:

Be it known that I, HARRY E. FoURoHER,

. a citizen .of the United States, residing at Augusta, in the county ofRichmond and State of Georgia, have invented anew and usefulBicycle-Lock, of which the following is a specification. V g I Thisinvention relates to looks for bicycles,

and other vehicles utilizing coaster brakes,

one of the objects of the invention being to provide a compact structurewhich, when in position, does not present an unsightly appearance andwhich, when in use, serves .positively to hold the wheel of the vehicleagainst rotation. I

One of the objects of the present invention is to provide a lock,onemember of which can be substituted for the fixed arm commonlyemployed in connection with coaster brakes or can be fixedly mounted inany other suitable manner, while the opposed member of the lock can beintegral with or attached to the hub of the wheel so as to rotatetherewith whereby, when the two members of the lock are in engagementwith each other, the wheel is held securely against rotation upon itsaxle.

Withthe foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and 1n the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of theinvention. I i

In the accompanying" drawings the preferred forms of the invention havebeen shown. 7 v

In said drawings :Figure 1 is a side elevation of a portion of avvehicle wheel having a coaster brake with whichthe present improvementsare combined. Fig. 2' is a section on line A-B Fig. 1, the end portionof the wheel hub being shown in elevation. Fig. 3 is a transversesection through the lock and showing the tonguethereof inen-' gagementwith its keeper. Fig. 4 is a section on line C-D Fig. 3. Fig. 5 is asimilar view showing the relative positions of the tumblers when thewheel is unlocked. Fig. 6 is a section on line EF Fig. 3, the keeperbeing removed. Fig. 7 is a sectional perspective view of the barrels ofthe lock.

Specification of Letters Patent. Application filed June 3, 1915. SerialNo. 31,925.

Patented 14, 1916.

Fig. 8-is a detail view of a key for use in connection with the lock.Fig. ,9 is an ele-' vation'of thevlock used in connection with a. hub inwhich notches are formed.

Referring to the figures by characters of reference J. designates aportion'of a wheel having combined with it a coaster brake structureindicated generally at 2. Coaster brakes of the standard types, such asthe Corbin, New departure and Morrow require the use of an arm which isconnected to a portion of the frame of the vehicle. It is designed, inthe present instance, to substitute for said arm, an arm 3 similar inappearance to the usual arm but provided, along its inner face and closeto but below the hub, with a lock casing 4 in the top portion of whichis formed a longif tudinal slot 5 having a side extension '6 shorterthan the balance'of the slot and forming a recess.

Fixedly mounted in one end portion of the casing 4:, which casing ispreferably cylindrical as shown, is a barrel 7 extending partly throughthe casing, this barrel being held against rotation in any suitablemanner, as by means of a diametrically disposed pin 11. Another barrel 9is mounted for rotation within the casing and abuts against the fixedbarrel 7, the two barrels 7 and 9 being provided with registering bores10. The pin 11 extends across the bore in the barrel 7 while another pin8 is secured in the barrel 9 and extends across the bore therein, thetwo pins 8 and 11 being engaged by the ends of a torsion spring 12 whichis housed at all times within the bores.

7 at-the inner end thereof and arranged in ing against the end's'oftumblers"'15.' r

The revoluble barrel 9 is provided on its periphery with ,a tongue 16which, when in looking position, is seated within the recess 6 in thecasing 4 but, when in unlocked position, is seated within the projectingportion of the slot 5. Barrel 9 is provided with one or morelongitudinal passages 17 extending therefrom so that, when said passagesare brought into register with the recesses 13, the tumblers 15 can beseated therein automatically, thus coupling together the two barrels andpreventing rotation of the barrel 9 relative to barrel 7. When the partsare thus located the tongue 16 is Recesses 13 are formed in the fixedbarrel? 7 these recesses are springs 14 constantly bear-I seated intherecess 6. Pins 19 are slidably' mounted in the'passages 17 and areadapted,

when the barrels are locked together, to bear,

against the tumblers 15. Guard wings 20 are extended from the outer endof thebarrel 9 and are spaced apart to form a slot ZI-tlesigned toreceive. a key 22 whichcan be of the form shown in Fig. 7 whereinparallel fingers 23 are provided'and are adapted, to be inscrtedintothepassages 17 and to press, aga1nst'p1ns19 so that said pins Wlllthus'thriist' the" tumblers out of' the counterbor'es'18. Itistobeunders'tood tliat'when it is desiredt move the tongue 16 out-of as;looking positio'lr'within the 're'cess'6, the

isto jbe inserted'into the lock as de with the extension of slot 5, thespring12 thrusts on the barrel9 and shifts it longitudinally so as tobring tongue 16 into the extension of slot 5.

' With the parts thus positioned, when it is desired to'shiftthe tongue16 to. locking positio'n it is merely necessary to push the barrel 9inwardly against the action of coiled spring-12 so as to thus shift thetongue 16 out ofthe extension of slot 5'. As soon as the tongue movesout of the extension of. slot 5, the wound tor'sion spring 12 willrotate the barrel 9 so as to shift the'tongue 16 into recess 6 and bringthe passages 17 into register with recesses 13. Consequently thetumblers 15 will shift automatically into the passages 17 and thus lockthe two barrels together.

Any suitablemeans may be provided for engagement by" the tongue 16. Forexample, and as shown in Figs. 1 and 2, a ring .Zl'can be placedupon thehub of thewheel 1, this ring being provided in its outer side, with adesired number of notches 25 any one of which is designed toreceive'the" tongue 16 when it is shifted to locking position. Ring 2 1can be fixedly connected to the hub of the wheel inany desired manner.Fon'example, it-can-be' formed with fingers 26 having re-v assets 27 inthe Sides thereof, these fingers being interlaced with the spokes ofthewheel.

01', if preferred, the ring could be fastened by screws or the like tothe hub. Another form of structure has been illustrated in Fig. 9wherein, instead of providing a ring upon the hub, notchesv 28 areformed directly in the end of the wheel hub and a stationary cap 30isfitted against said hub. 1 Thiscap has a notch 31 in the bottomthereof adaptedto receive tongue 16, the notches 28 being meansextending'into both barrels and thrust-' ing the movable barrelaway fromthe fixed barrel, a lo clungelement carried by the mom able barrel andnormally held by said resilient means,'pressed against one end of theslot and out of the recess in the side of the slot, tumblers movablymounted in the barrels for holding the locking element in the recess andin one of the notches in the movable member, said tumblers beingyieldingly pressechand key actuated means for forcing the tumblers outof the'inovable barrel thereby to release the barrel, the resilientmeans within the barrel and which normally thrusts the barrels apart,operating to simultaneously rotate the movable barrel when released toremove the locking element from the recess and to thrust said movablebarrel longitudinally to position the locking element against the end ofthe slot in the casing.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

HARRY E. FOURCHER \Vitnesses .J. J. Saxon, I CHA W. Sci-1pm.

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